I tried to install MS Exchange 2010 on Windows Server 2008 R2. The installation went fine i.e. the wizard went through the process successfully.

Now when I run the get-exchangeserver inside the EMS get the following error. Any help will be highly appreciated.

PS C:\Users\administrator.ROOT> Get-ExchangeServer
The term 'Get-ExchangeServer' is not recognized as the name of a cmdlet, function,
script file, or operable program. Check the spelling of the name, or if a path was
included, verify that the path is correct and try again.
At line:1 char:19
+ Get-ExchangeServer <<<<
+ CategoryInfo : ObjectNotFound: (Get-ExchangeServer:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException